iOS create local notifications and delete corresponding notifications, weekday notifications

The main code of this article is: Create a local notification, delete the corresponding local notification, create a weekday alarm

Directly on the code:

////VIEWCONTROLLER.M//localnsnotification////Created by wusiping on 16/1/27.//copyright©2016 year wusiping. All rights reserved.//#import "ViewController.h"#definelocal_notify_schedule_id @ "Hahahhahahhah"@interfaceViewcontroller ()@end@implementationViewcontroller- (void) viewdidload {[Super viewdidload]; //additional setup after loading the view, typically from a nib.UIButton*CREATEBTN = [[UIButton alloc]initwithframe:cgrectmake ( -, -, -, -)]; [Createbtn settitle:@"Create a notification"Forstate:uicontrolstatenormal]; CreateBtn.titleLabel.textColor=[Uicolor Blackcolor]; Createbtn.backgroundcolor=[Uicolor Lightgraycolor];    [Createbtn addtarget:self Action: @selector (Creatensnotification) forcontrolevents:uicontroleventtouchupinside];        [Self.view ADDSUBVIEW:CREATEBTN]; UIButton*CANCELBTN = [[UIButton alloc]initwithframe:cgrectmake ( -, -, -, -)]; [Cancelbtn settitle:@"Delete Notification"Forstate:uicontrolstatenormal]; CancelBtn.titleLabel.textColor=[Uicolor Blackcolor]; Cancelbtn.backgroundcolor=[Uicolor Lightgraycolor];    [Cancelbtn addtarget:self Action: @selector (Cancelnsnotification) forcontrolevents:uicontroleventtouchupinside]; [Self.view addsubview:cancelbtn];}-(NSDate *) getcurrrenttimetoss{NSDateFormatter*formatter =[[NSDateFormatter alloc]init]; [Formatter Setdateformat:@"YYYY-MM-DD HH:mm:ss"];    [Formatter DateFormat];    [NSDate Date]; return[NSDate Date]; }- (void) creatensnotification{uilocalnotification*localnotification =[[Uilocalnotification alloc] init]; if(Localnotification = =Nil) {        return; }    //set the trigger time for local notifications (if you want to trigger immediately, without setting), this is set to 20 wonderful afterLocalnotification.firedate = [NSDate datewithtimeintervalsincenow: -]; //set the time zone for local notificationsLocalnotification.timezone =[Nstimezone Defaulttimezone]; //set the contents of a notificationLocalnotification.alertbody =@"Hahhah"; //set the caption of the Notification action buttonLocalnotification.alertaction =@"View"; //set the sound of the reminder, you can add your own sound file, which is set as the default prompt soundLocalnotification.soundname =Uilocalnotificationdefaultsoundname; //set up information about the notification, this is important, you can add some of the marked content, easy to distinguish and get the notification information laterNsdictionary *dict =[nsdictionary dictionarywithobjectsandkeys:[nsnumber numberwithint:9529],@"Nfsigninkey", nil];    [Localnotification setuserinfo:dict]; //after iOS8, you need to add this registration to be authorized    if([[UIApplication sharedapplication] Respondstoselector: @selector (registerusernotificationsettings:)]) {UIUser NotificationType type= Uiusernotificationtypealert | Uiusernotificationtypebadge |Uiusernotificationtypesound; Uiusernotificationsettings*settings =[Uiusernotificationsettings Settingsfortypes:type        Categories:nil];        [[UIApplication sharedapplication] registerusernotificationsettings:settings]; //the unit that notifies the repeating prompt, which can be day, week, monthLocalnotification.repeatinterval =Nscalendarunitday; } Else {        //the unit that notifies the repeating prompt, which can be day, week, monthLocalnotification.repeatinterval =Nsdaycalendarunit; }    //trigger a notification on a specified date[[UIApplication sharedapplication] schedulelocalnotification:localnotification];}/** * Delete the current notification*/- (void) cancelnsnotification{//Manually delete notifications//Here we are going to delete the key and the custom ID that we set when we add it .Nsarray *narry=[[UIApplication sharedapplication] scheduledlocalnotifications]; Nsuinteger acount=[Narry Count]; if(acount>0)        {            //traverse to find the corresponding Nfkey and Notificationtag notifications             for(intI=0; i<acount; i++) {uilocalnotification*myuilocalnotification =[Narry objectatindex:i]; Nsdictionary*userinfo =Myuilocalnotification.userinfo; NSNumber*obj = [UserInfo objectforkey:@"Nfsigninkey"]; intmytag=[obj intvalue]; if(mytag==9529)                {                    //Delete local Notifications[[UIApplication sharedapplication] cancellocalnotification:myuilocalnotification];  Break; }            }        }}@end

You may encounter a weekday alarm clock that requires:

 if([Cycle isequal:@"Weekday"]) {//if it's a weekday alarm clockNSDate *now=select;//Current TimeNscalendar*gregorian =[Nscalendar Currentcalendar]; Nsdatecomponents*datecomps =[Gregorian Components:nsweekdaycalendarunit Fromdate:now]; Nsinteger Daycount= [Datecomps weekday]-2; NSDate*weekdaybegin=[now addtimeinterval:-daycount* -* -* -];  for(intI=0;i<5; i++) {//Create 5 notifications: Monday to FridayNSDate *now= [Weekdaybegin addtimeinterval:i* -* -* -];            [Self creatmessage:now]; }   }-(void) Creatmessage: (NSDate *)New{uilocalnotification*notification=[[Uilocalnotification alloc] init]; if(Notification!=nil && Select!=nil &&cycle.length >0&&key.intvalue==1)    {        //Trigger Notification Time//[self canceluilocalnotification];NSDate *now=New; NSLog (@"%@", now); NSDate*today =[self getcurrrenttimetoday]; BOOL Issameday=[self issameday:now date2:today]; if(Issameday = = YES) {//Special Needs: Don't care about this .//today's week X, delayed by one week trigger. For example, today is Wednesday, the alarm clock will start next Wednesday. Tomorrow is Thursday, the Thursday alarm clock will be triggered tomorrow . Now= [NSDate datewithtimeinterval: -* -* -*7Sincedate:now]; } notification.firedate=Now ; Notification.timezone=[Nstimezone Defaulttimezone]; Notification.repeatinterval=Kcfcalendarunitweek; Notification.soundname=@"ringtones. m4r"; Notification.alertbody=@"did you sign isite today? Don't forget it! "; Notification.alertaction=nslocalizedstring (@"did you sign isite today? Don't forget it! ", nil); Nsdictionary*dict =[nsdictionary dictionarywithobjectsandkeys:[nsnumber Numberwithint:9529],@"Nfsigninkey", nil];                [Notification setuserinfo:dict]; //Enable this notification[[UIApplication sharedapplication] schedulelocalnotification:notification]; }    }

iOS create local notifications and delete corresponding notifications, weekday notifications